From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 3D6E9D3F09D for ; Thu, 29 Jan 2026 16:55:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To: Content-Transfer-Encoding:Content-Type:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=BG8fm6Z67+VoDdJeqwQd0nIhaenQup0lPxVOsS369F4=; b=X8h/7FaMCzl18xOFl3FrCkAzQw pPp6Pyza5UONBpoMYb5jfQG8alh/PkbHUcoTuL3Uhz+0SFdV4QwSYg9J2XEjIiMKFiWADh/lSMJ6P YbNvceBGySeKkTZFuGQaviDl+j8+cVPGaD7coaC2Zn2PixJHqWG0tX/xEvkwq9Ag3uoaa2e1PcpPn A/WS2cVPAlEeleX/tBbUwjW1+agBYcHeDD4h/89CQ1l/CWCpUEpeMqwAEsCufC9Kzj18LQ++Wpklw +PiEcvWSMNpp8zAa/gcXGswC/+cj+mM//ImuLf2yLxbTL69ZLaJetel+tqqB75UXatMWUTMidVz5K PFclUGLQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vlVIu-00000000NUP-0UBq; Thu, 29 Jan 2026 16:55:36 +0000 Received: from sea.source.kernel.org ([172.234.252.31]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vlVIq-00000000NTr-3bWO for linux-arm-kernel@lists.infradead.org; Thu, 29 Jan 2026 16:55:34 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 688D34370B; Thu, 29 Jan 2026 16:55:32 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2388DC4CEF7; Thu, 29 Jan 2026 16:55:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1769705732; bh=mZs03WYD4uRFTip8el8/SaAOaPr/KLn2tNNfr3ADzqM=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=nZ9zKXPrUoLdPcQT07k41nF6WLFtAZZe85ruwQmm2Z6RUd7uI19PFYB+1ygycb4+M sNCytqXi9y3Yl5Rb0q7B1wy1J+Zf+bZbyrUT78u17Tt5sefiGwO5vzgAQOZsFmDWt4 XopdtXorOrT50Q/a0g3gO2NgU3+P/zLd4y0BZr3B1SiNTxEw2h6ptRyVgpvGLwllX3 BhgOzt+uetn51K+48rjGu/HaNDaolUvnMJfo5ufAUzH3x/dkCNxmTSxeg4rMso2fAr /3haGHrGsIPWwslXr3sdWoGcmN2aIIgvJ1QpRE0smIEE4lBIGhJTMYVYznTNnyTr2N aBTvmwwndhT5w== Date: Thu, 29 Jan 2026 10:55:31 -0600 From: Rob Herring To: =?iso-8859-1?Q?Andr=E9?= Draszik Cc: Krzysztof Kozlowski , Alim Akhtar , Conor Dooley , Krzysztof Kozlowski , Ulf Hansson , Liam Girdwood , Mark Brown , Peter Griffin , Tudor Ambarus , Juan Yescas , Will McVicker , kernel-team@android.com, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org Subject: Re: [PATCH v4 01/10] dt-bindings: soc: google: add google,gs101-dtzpc Message-ID: <20260129165531.GA1269692-robh@kernel.org> References: <20260128-gs101-pd-v4-0-cbe7bd5a4060@linaro.org> <20260128-gs101-pd-v4-1-cbe7bd5a4060@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20260128-gs101-pd-v4-1-cbe7bd5a4060@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260129_085532_934907_8CED7A6F X-CRM114-Status: GOOD ( 19.87 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Jan 28, 2026 at 04:10:50PM +0000, André Draszik wrote: > The Exynos Distributed TruztZone Protection Control (D_TZPC) provides > an interface to the protection bits that are included in the TrustZone > design in a secure system. It configures each area of the memory as > secure or non-secure. This sounds like what access-controllers binding is for. Does that work here? > Signed-off-by: André Draszik > --- > .../bindings/soc/google/google,gs101-dtzpc.yaml | 42 ++++++++++++++++++++++ > MAINTAINERS | 1 + > 2 files changed, 43 insertions(+) > > diff --git a/Documentation/devicetree/bindings/soc/google/google,gs101-dtzpc.yaml b/Documentation/devicetree/bindings/soc/google/google,gs101-dtzpc.yaml > new file mode 100644 > index 0000000000000000000000000000000000000000..a8c61ce069d6910c47753bf14a792eb58e6ae182 > --- /dev/null > +++ b/Documentation/devicetree/bindings/soc/google/google,gs101-dtzpc.yaml > @@ -0,0 +1,42 @@ > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/soc/google/google,gs101-dtzpc.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Samsung Exynos Distributed TruztZone Protection Control. > + > +description: > + Distributed TrustZone Protection Control (D_TZPC) provides an interface to the > + protection bits that are included in the TrustZone design in a secure system. > + It configures each area of the memory as secure or non-secure. > + > +maintainers: > + - André Draszik > + > +properties: > + compatible: > + const: google,gs101-dtzpc > + > + clocks: > + maxItems: 1 > + > + reg: > + maxItems: 1 > + > +required: > + - compatible > + - clocks > + - reg > + > +additionalProperties: false > + > +examples: > + - | > + #include > + > + dtzpc_hsi0: dtzpc@11010000 { > + compatible = "google,gs101-dtzpc"; > + reg = <0x11010000 0x10000>; > + clocks = <&cmu_hsi0 CLK_GOUT_HSI0_D_TZPC_HSI0_PCLK>; > + }; > diff --git a/MAINTAINERS b/MAINTAINERS > index a56f8f00aebb938aa765a8a6d66dfeb7f062dac8..98b2ef47c809ac0232e6941c9483b19d7c798bb4 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -10833,6 +10833,7 @@ P: Documentation/process/maintainer-soc-clean-dts.rst > C: irc://irc.oftc.net/pixel6-kernel-dev > F: Documentation/devicetree/bindings/clock/google,gs101-clock.yaml > F: Documentation/devicetree/bindings/phy/google,lga-usb-phy.yaml > +F: Documentation/devicetree/bindings/soc/google/google,gs101-dtzpc.yaml > F: Documentation/devicetree/bindings/soc/google/google,gs101-pmu-intr-gen.yaml > F: Documentation/devicetree/bindings/usb/google,lga-dwc3.yaml > F: arch/arm64/boot/dts/exynos/google/ > > -- > 2.52.0.457.g6b5491de43-goog >